Step 2. If you are using free software, it may not have a built in recorder. Try [http://audacity.sourceforge.net

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http://audacity.sourceforge.net/help/faq?s=install&i=lame-mp3

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Audacity] to record voice, original music played on an instrument, or your digital file composed with [http://downloads.zdnet.com/abstract.aspx?kw=piano&docid=823211 HS Virtual Piano] or [http://mac.softpedia.com/get/Dashboard-Widgets/Music/Piano.shtml/ Piano 2.2]